13973868 has 18 divisors (see below), whose sum is σ = 35322924. Its totient is φ = 4657944.

The previous prime is 13973837. The next prime is 13973887. The reversal of 13973868 is 86837931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194046 + ... + 194117.

Almost surely, 2^13973868 is an apocalyptic number.

13973868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13973868 is an abundant number, since it is smaller than the sum of its proper divisors (21349056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13973868 is a wasteful number, since it uses less digits than its factorization.

13973868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388173 (or 388168 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 13973868 is about 3738.1637203311. The cubic root of 13973868 is about 240.8641762627.

It can be divided in two parts, 13973 and 868, that added together give a palindrome (14841).

The spelling of 13973868 in words is "thirteen million, nine hundred seventy-three thousand, eight hundred sixty-eight".